Gustav Fröhlich (also Frölich; 1902 – 17 April 1968) was a German swimmer who specialized in the 100 m breastroke. In this discipline, he set a world record in 1921,[1] and won two European medals, gold and bronze, in 1926 and 1927, respectively,[2] as well as five national titles between 1921 and 1926.[3]